This part specifies the test conditions, condition tests, test procedures and environmental test marks for low temperature and low pressure comprehensive tests. This section applies to optical instruments, instruments with optical components and optical components used in high mountain areas or on aircraft dashboards or missiles. The purpose of this test is to study the change degree of the optical, thermal, chemical and electrical properties of the sample affected by low temperature and low pressure, including the determination of the additional impact of water condensation and freezing on instruments or components.
GB/T 12085.5-2010 Referenced Document
GB/T 12085.1 Optics and photonics—Environmental test methods—Part1: Definitions, extent of testing*, 2022-10-14 Update
GB/T 12085.5-2010 history
2022GB/T 12085.23-2022 Optics and photonics—Environmental test methods—Part 23:Low pressure combined with cold,ambient temperature and dry or damp heat
2011GB/T 12085.5-2010 Optics and optical instruments.Environmental test methods.Part 5:Combined cold,low air pressure
1989GB/T 12085.5-1989 Optics and optical instruments--Environmental test methods--Combined cold,low air pressure
GB/T 12085.5-2010 Optics and optical instruments.Environmental test methods.Part 5:Combined cold,low air pressure was changed to GB/T 12085.23-2022 Optics and photonics—Environmental test methods—Part 23:Low pressure combined with cold,ambient temperature and dry or damp heat.